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Use dasharray and dashoffset attributes in svg context

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This commit is contained in:
Drahoslav 2017-12-24 14:46:58 +01:00
parent 0b3b26d85f
commit 484fe1caef
2 changed files with 25 additions and 12 deletions
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12
draw2dsvg/gc.go
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@ -81,6 +81,10 @@ func (gc *GraphicContext) drawPaths(drawType drawType, paths ...*draw2d.Path) {
svgPaths[i].StrokeWidth = toSvgLength(gc.Current.LineWidth)
svgPaths[i].StrokeLinecap = gc.Current.Cap.String()
svgPaths[i].StrokeLinejoin = gc.Current.Join.String()
if len(gc.Current.Dash) > 0 {
svgPaths[i].StrokeDasharray = toSvgArray(gc.Current.Dash)
svgPaths[i].StrokeDashoffset = toSvgLength(gc.Current.DashOffset)
}
} else {
svgPaths[i].Stroke = "none"
}
@ -105,6 +109,14 @@ func toSvgLength(l float64) string {
return fmt.Sprintf("%.4f", l)
}
func toSvgArray(nums []float64) string {
arr := make([]string, len(nums))
for i, num := range nums {
arr[i] = fmt.Sprintf("%.4f", num)
}
return strings.Join(arr, ",")
}
func toSvgPathDesc(p *draw2d.Path) string { // TODO move elsewhere
parts := make([]string, len(p.Components))
ps := p.Points

3
draw2dsvg/svg.go
View file

@ -33,7 +33,6 @@ type Text struct {
Style string `xml:",attr,omitempty"`
}
/* shared attrs */
type FillStroke struct {
@ -42,4 +41,6 @@ type FillStroke struct {
StrokeWidth string `xml:"stroke-width,attr,omitempty"`
StrokeLinecap string `xml:"stroke-linecap,attr,omitempty"`
StrokeLinejoin string `xml:"stroke-linejoin,attr,omitempty"`
StrokeDasharray string `xml:"stroke-dasharray,attr,omitempty"`
StrokeDashoffset string `xml:"stroke-dashoffset,attr,omitempty"`
}